Finding the Third Proportional to 4,685,587 and 7,078,303

Step by Step Solution

1. Step 1: Write the proportion equation
   4,685,587 : 7,078,303 = 7,078,303 : x
2. Step 2: Convert to fraction form
   4,685,587/7,078,303 = 7,078,303/x
3. Step 3: Cross multiply
   4,685,587x = 7,078,303 × 7,078,303
4. Step 4: Simplify right side
   4,685,587x = 50,102,373,359,809
5. Step 5: Solve for x
   x = 50,102,373,359,809/4,685,587
6. Step 6: Final answer
   x = 10,692,870.15